All Episodes
Astronomy: The Science of the Heavenly Bodies by David Todd (1855 - 1939) — 62 episodes
The Galaxy or Milky Way
Star Clouds and Nebulæ
The Spiral Nebulæ
Cosmogony
Cosmogony in Transition
Preface
Astronomy a Living Science
The First Astronomers
Pyramid, Tomb, and Temple
Origin of Greek Astronomy
Measuring the Earth—Eratosthenes
Ptolemy and His Great Book
Astronomy of the Middle Ages
Copernicus and the New Era
Tycho, the Great Observer
Kepler, the Great Calculator
Galileo, the Great Experimenter
After the Great Masters
Newton and Motion
Newton and Gravitation
After Newton
Halley and His Comet
Bradley and Aberration
The Telescope
Reflectors—Mirror Telescopes
The Story of the Spectroscope
The Story of Astronomical Photography
Mountain Observatories
The Program of a Great Observatory
Our Solar System
The Sun and Observing It
Sun Spots and Prominences
The Inner Planets
The Moon and Her Surface
Eclipses of the Moon
Total Eclipses of the Sun
The Solar Corona
The Ruddy Planet
The Canals of Mars
Life in Other Worlds
The Little Planets
The Giant Planet
The Ringed Planet
The Farthest Planets
The Trans-Neptunian Planet
Comets—the Hairy Stars
Where Do Comets Come From?
Meteors and Shooting Stars
Meteorites
The Universe of Stars
Star Charts and Catalogues
The Sun's Motion Toward Lyra
Stars and Their Spectral Type
Star Distances
The Nearest Stars
Actual Dimensions of the Stars
The Variable Stars
The Novæ, or New Stars
The Double Stars
The Star Clusters
Moving Clusters
The Two Star Streams